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US 2018/0003003 A1Published application
Methods and systems for stimulating and restimulating a well
OwnerPeter Kris Cleveninventor
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Abstract
Embodiments disclosed herein describe fracturing methods and systems, wherein pressure differentials and fluid flow rates may be utilized to stimulate multiple zones, sleeves, or ports with the same tool.
Claims20
A system for stimulating a well, the system comprising:
- tubing with a hollow inner chamber extending from a proximal end to a distal end;
- a dart configured to pull or push the tubing responsive to fluid flowing through an annulus positioned between an outer diameter of a tool and the inner diameter of a casing;
- a check valve configured to cover and uncover a port positioned on a first end of the tool based on a fluid flow rate within an inner diameter of the tool;
- a piston sleeve positioned on the tool configured move towards a distal end of the tool responsive to the check valve covering the port;
- and
- a shifting profile configured to extend across the annulus responsive to the piston sleeve moving towards the distal end of the tool.
3 more elements
A method for stimulating a well comprising:
- positioning a tool within a casing, the tool including a hollow inner chamber extending from a proximal end to a distal end;
- flowing fluid through an annulus positioned between an outer diameter of the tool and an inner diameter of the casing;
- pulling or pushing, via a dart positioned on a first end of the tool, a tubing, responsive to the dart receiving the fluid;
- covering and uncovering a port positioned proximate to the first end of the tool via a check valve based on a fluid flow rate within an inner diameter of the tool;
- moving a piston sleeve positioned on the tool towards the distal end of the tool responsive to the check valve covering the port;
- and
- extending a shifting profile across the annulus responsive to the piston sleeve moving towards the distal end of the casing.
4 more elements
Dependencies are inferred from the claim text.